Process of hyeing elongated bodies of yarn or the like.



H. MAM?, PROCESS 0F DYUNG ELUNGM'EU BODIES 0F YARN 0R THE LIKE.

hPPLIGATIQN FILED APR. 8. www

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Patented Fab. 26

narnnr oir-nlnet HERMAN'I KHANTZ, 0F AACHEN, PRUSSIA, GERMANY.

PRCESS Qld" 'JDYEING ELONGATED BODIES OF YARN OR THE LIKE.

resteert.

To all whom t may concern: y

lie it known that l. llenar/wn. KRANTZ, a suhicct ot the King or llrussiarresiding at arhen. No. 2, h'lonheilnsallee. in the Kingdoin ol Prussia. lnipire of Germany, have invented certain new and useful Improvements in Processes of Dyeing Elongated Bodies of Yarn or the like; and l do hereby declare the following to be a full, clear, and exact description ot the invention, such as will enable others skilled in the art to which it appertains to make and lise the same.

ln. dyeing elongated bodies of yarn or the like, such as banks or skeins of yarn, it is conn'non practice to string the bodies close beside each other upon horizontally arranged sticks in such manner that approXi-- mately their entire length depends loosely below the sticks. The stringing up must be done very carefully and by skilled nien in order to prevent the loose hanging threads `troni being engaged and rent by the laterally projecting heads lormed at the ends of the yarn sticks which owing to the frequent cooking have become rough and issured.

Special care is required with yarn which sa'ongly frizzles. When dyeing by means o'l downwardly flowing dyeing liquid, the lower ends of the banks or skeins were supported by a kind of bottom e. the weight of Sanne was balanced. in order to facilitate the penetrating of the dye liquid into the spots of the hunks where they rested on the sticks. ln order to avoid entangling of the threads when dyeing banks in hanging state by means olf reversibly circulating dyeing liquid, the hanksmespecially those of lighter yarns-were packed from the sides and kept down by a second stick pushed through the banks above their lower ends. According to the length ot the hanks the sticks below lwere adjustable in height in order to allow the hanks some play over the two rows of sticks. Thus at both flows (up or downward) of the dyeing liquid the hanks were dyed in a stretched state. the whole yarn block moving in the direction of dye liquid and exposing to sainelthe spots where it rested on the sticks. @n account of the continuously stretched state of the hanks, however, a good penetration of the dye liquid into the hanks is rnade diilicult.

According 'to the present invention, when 'f hanks with reversibly circulating dye p liquid, the single hanks which hang Specification of Letters Patent.

freely in the vat on stick-like supports are no longer strung upon one or even two sticks, but are laid oversneh stick-like yarn bearers in such a way that their middle parts rest at two spots on the yarn bearers Aand that their ends hang down on the right and left hand side of the sticks as loops. Above the bearing sticks at some distance from the saine a stopping sieve or stopping boards are arranged in any ordinary manner.

In order to illustrate the effect of the new way of supporting the banks, this is shown on the accompanying drawings in combination with a generally known dyeing appa ratus.

Figure l shows the hanks laid over bearing sticks in the new manner if the dye liquid is flowing downward.

Fig. 2 is a similar View with the dye liquid flowing upward.

Figs. 3 and 4 show frontand side-views of hanks laid over the bearing sticks in the@ new manner. o

-lln the well-known way stopping boards 3 are placed in the dye liquid above the bearing sticks Q. When the dye liquid is moving upward the hanks are carried against these boards in order to be swelled. A bottom below the hanging banks for supporting saine if the dye-liquid is moved downward is not proyided in thc dye vat and not necessequently the downwardly moving dye liquid easily penetrates into these spots sothat ii is not necessary to balance the weight of the hanks by a supporting bottom. Since this mode of suspending the hanks arranges twice as much material cross-wse to the current as the ordinary suspension, the uprising liquid is more -ell'ective to spread apart the strands to `form, as shown by Fig. 2, a loose layer of yarn below the stopping boards 3. @wing to this manner of working the overllatented lFelo. 26., llhllld..

Application filed April 8, 1911i. Serial No. 830.382.

laid hanks can be dyed, especially in the direction of the yarn bearers, without being packed from the sides and various large quantities can be treated in one apparatus. As after each change of the direction of the dye liquid the threads of the hanks receive quite another position from one another, they are uniformly dyed.

Theloverlaying of the hanks is a simple work which can be quickly done by unskilled men without the loosely hanging threads being rent.' Besides, the examination of each hank with regard to the right position otl the threads at the binding-up thread is unnecessary.

The advantages connected with the new prccess are:

Saving of time and wages for .the laying over and taking ofi' of the banks,

Sparing of hanks,

Obtaining of loose yarn to be easily reeled,

Uniform coloring,

Applicability of one apparatus for small and large quantities.

Having thus described my invention, what I claim is 4 1. The herein described process of dyeing elongated bodies of yarn or the like, which consists in hanging said bodies substantially by their intermediate portions, over a supporting member, .so that their opposite ends hang loose on the opposite sides of the supporting member, and then causing the dyeingliquid to iiow in a vertical direction through said yarn.

` 2. The herein described process ofldyeing elongated bodies of yarn or the like, which consists in hanging said bodies, substantially by their intermediate portions, over a supporting member, so that their opposite ends hang loose on the opposite sides of the supporting member, and then causing the dyeing liquid to flow alternately upwardly and downwardly through said yarn.

3. The herein described process of dyeing endless banks of yarn or the like, which consists in doubling the hank over a supporting member, so that the two looped ends of the liank lie contiguous, and then passing the dyeing liquid through said yarn.

4. he herein described process of dyeing an elongated body o yarn, which consists in hanging the arn by its intermediate portion over a suitable support within a vat, and then passing the dyeing liquid alternately upwardly and downwardly through the vat. 5. The herein described process of dyeing an elongated body of yarn or the like, which consists in folding said body upon itself into substantially U-shape so that the ends of the legs of the U will present the yarn in a relatively non-folded condition as compared with the connecting portion of the Ufand then causing the dyeing liquid to flow through said yarn in a direction longitudinally of the legs of the U. l,

In testimony whereof l have signed" my name to this specification in the presenceottwo subscribing witnesses.

HERiSiaNN KBANTZ.

Witnesses ALoYs OFFERMANN, HENRY AUsDFLmz. 

